Water level automatic-control device

Abstract

The invention provides a water level automatic-control device. An intermediate relay is connected between a fire line and a null line to form a loop together with a liquid level relay Y; a connecting line A connects two switches with a thermal relay and an intermediate relay KA1 and is connected with the null line; a connecting line B serially connects the intermediate relay with a liquid level relay, an intermediate relay, a time relay and an alternating-current relay KM and is communicated with the null line; the fire line is provided with a connecting line C which serially connects a liquid level relay with a time relay, an intermediate relay and an intermediate relay KA and is connected with the null line; a connecting line D serially connects an intermediate relay with a time delay KT5S and is communicated with the null line; a connecting line E is connected with an intermediate relay and is connected with the fire line; a connecting line F is bent and then connected with a time relay KT3S and communicated with the null line; a connecting line G arranged between the liquid level relay and the time relay of the connecting line C is connected with the intermediate relay and is then connected with the fire line. The water level automatic-control device can be used for automatically controlling the water level.

Description

technical field [0001] The invention relates to an automatic control device for water well and pool pumping equipment, in particular to a water level automatic control device. Background technique [0002] When using a water pump to pump water in a well or a pool, someone must monitor it. If there is no one on duty, a slight negligence will cause equipment damage due to abnormal water levels, which will directly affect the normal production and bring safety production directly. come to harm. Contents of the invention [0003] The invention provides an automatic control device for water level and liquid level, which can automatically regulate the water level of the equipment and ensure safety when the equipment is running unattended. [0004] The present invention includes a live wire, a neutral wire and a switch, and the adopted technical solution is: the device used for automatic control of the water level and the liquid level connects an intermediate relay and a liquid ...

AI Technical Summary

Problems solved by technology

[0002] When using a water pump to pump water in a well or a pool, someone must monitor it. If there is no one on duty, a slight negligence will cause equipment damage due to abnormal water levels, which will directly affect the normal production and bring safety production directly. come to harm

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